Sync virtual attribute values in side by side setup (6.9 -> 7.4)


we are running ARS 6.9 in our production environment and are heavily using virtual attributes. I've set up ARS 7.4 side by side a while ago to familiarize with the new version, imported the 6.9 configuration and MH and already configured some workflows, policies and websites in 7.4. Is there a way to sync the virtual attribute (value) changes that occurred in the meantime in 6.9 to 7.4 without re-importing the whole configuration?